Table 2. Phenotypic statistics for Holstein and Jersey milk, fat, and protein yields based on cows with genotype probabilities derived using genotyped sire and dam (S-D) or genotyped sire and maternal grandsire (S-MGS).
| Genotyped ancestors | Trait | Holstein | Jersey | ||||
| Records (no.)a | Mean (kg) | Standard deviation (kg) | Records (no.)a | Mean (kg) | Standard deviation (kg) | ||
| S-D | Milk | 25,926 | 10,550 | 1,582 | 4,896 | 7,483 | 1,459 |
| Fat | 25,926 | 372 | 61 | 4,896 | 333 | 66 | |
| Protein | 25,926 | 327 | 44 | 4,896 | 273 | 48 | |
| S-MGS | Milk | 33,897 (2,278,652) | 9,858 | 750 | 11,823 (379,713) | 6,899 | 872 |
| Fat | 33,897 (2,278,652) | 346 | 26 | 11,823 (379,713) | 311 | 34 | |
| Protein | 33,897 (2,278,652) | 304 | 22 | 11,823 (379,713) | 253 | 27 | |
a
Total number of daughters in S-MGS group in parentheses.